Hello my lovely Crate team and thanks for amazing DLC, just yesterday I finished the whole campaign on Ascendancy lvl 100 (and partially unfortunately) Hardcore Ascendancy lvl100… This will be long read as I did 3 days tests on Crucible, SR and the campaign itself.
The campaign:
Sounds (voices) of Bloodbound and Kaw’Hraanak is a bit loud requires reduction on about 2.8 db (there’s else sounds required attention if needed I can try do list). I see sound engineers used something like binaural or ultra wide stereo sounds, that’s quite good but over wide sounds always feels more powerful than mono.
Textures on low graphic, I bet someone already reported about that (switching to Shaders from Low to High removes that problem):
Chiftain Gruldir of the Dread Wastes: his dogs Jaws of Ch’Thon are invincible and can’t be targeted. If it’s a skill of boss ok, but they have no CD and exists permanently? And can’t take any damage and you can’t just attack them in any way. Than why they are spawns like mobs than in Crucible? And also a glitch in crucible here in video, Jaws of Ch’Thon has there abnormal amount of regeneration and can’t be killed while all bosses or nemesis are dead on wave 192. (ALL YT LINKS ARE NON PUBLIC):
Jaws of Ch’thon in Campaign
Jaws of Ch’thon in Crucible
The Dread I have mixed feelings about that one and here’s a glitch with HP bar that shows 20% when it is dies HP Bar not ends. As for the boss itself, as a guy who play this game from early alpha veteran who beat Ravager and Callagadra many times I can say that it feels too much resisted, it took ages to kill it if compare to other super bosses like same build I killed in video The Dread (11-16 minutes), kills Callagadra in 5-6 minutes and due to damage numbers - it’s obvious too much resists (and a bit needs less OA-DA just in 12% less). Also it feels weird like when you melee you feel all the power of attacks but for range it much more easier, especially bacuse of the +10000% lifesteal attack he has, not always you can kite this melee attack it when char use some skills and boss will heal on few millions of HP 
- and it’s pain for melee but not pain for any other type of gameplay. Maybe it’s possible to add something like Ch’thonic seal under those players - whom AI inspects that kiting him far and target on them to heal - it will make it both hard for any gameplay (but definitely it requires to take less heal). -That’s just my opinion. Overall I didn’t found any issues with attacks it is very powerful and looks ok.
Boss Grul’Thunn of the Crimson Tides: if it’s idea was an alternative boss of same level difficulty as Shar’Zhul Harbringer of Chaos (first Ch’Thonic Dungeon) that I can say it’s completely broken 
his (looks like) a bleed whirlpool damages like heavy superboss Ravager Hits. That damage overload feels the same when he spawns on Crucible, if compare it’s like damage of 3-5 Shar’Zhul
Grul’Thun of the Crimson Tides (Abnormal Peaks of Damage)
And here we go again (and that’s my biggest sadness) Grava’Thul’s Nullification made oneshot of my character with full HP over all mechanics after small freezing - on… HC! I remember that glitch long back in 2018 when it was oneshooting players over all mechanics. And again this glitch exsists… As I remember right, it was somehow a problem with transmutators active “adds chaos bonus damage to mobs in dungeon”. I beat Grava on this character and all Super Bosses over last few years many times, but I remember in the past this glitch WAS in the game:
Gravathul the Void Drinker (Permanent Nullify oneshoot glitch)
The last one about campaign part in my post about Avatar of Mogdrogen vs Beronath. Faced both on Ascendancy lvl 100, compared gameplay and bosses. Mogdrogen looks well ballanced in attacks CD, cycles, skills, it works as it should the superboss, almost got him, but died when he’s health was 10% (Ascendancy Softcore lvl 100) - i think it’s ok for a completed build (that has no ascendancy bonuses gear - so far it’s good result). But than I faced Beronath and I can’t say that on lvl 100 Ascendancy it is less powerful than SuperBoss, it is likely more philosophical question: Should the Celestial last act boss be so overpowered? (In my opinion yes) That makes that feeling on the edge to deal with Beronath, but I feel like area debuff pools on the WHOLE arena is too much 
you can’t just find a place where to fight with it, and for glasscannons builds it can be impossible and for most of people who never played to GD, or newbies or have less experience in game understandings. So just my thoughts on that one, a bit less damage spikes from most heavy attacks and less radius on pools over arena.
Mog vs Beronath
The Shattered realm:
Also some time in the past this glitch was already in the game in times of Forgotten Gods… Double spawn of bosses in SR? Really? Ok if it’s not glitch, but I’m sure it was before and people asked not to do like this:
Some of new Nemesis has disproportional damage level in SR, here’s a fragment of SR32. Vinn “The Giant” Ozman in same Shard feels like two Iron Maiden or two Zantarin Immortal. Same I can mention about Aleksander’s crystals, when he spawns them small meteors does abnormal amount of damage in high shards (and it was even before 1.3) - I did on other character SR40 and Aleksander was feeling there as the whole team of Nemesis compared in power. so I’m afraid what they does now
Shattered Reality (Disproportional of some scales damage)
The Crucible
As I mentioned before, lot’s of loud sounds from some bosses and mobs.
As I mentioned before Jaws of Ch’Thon unkillable
Also the count of points gained in crucible has broked after one of the waves from about 3-5mil it changed to “744” here
Are you shure that new boss should spamm Nullify totems around the whole arenas and you can’t hide from that anywhere? For HC that’s extremely philosophical question, especially if you see this even on wave 150, not to mention later amounts of appearance?
Overall I must say I tried it on HC on the most powerful tank build I had and played over years and I felt some things was too overwered on high levels. And it’s just ascendancy activated, I can’t Imagine how horrific it could be if you use an altar in Kurn that gives drop benefits but gains EVEN more damage to monsters and bosses - is like and mod +40% monster damage. If that works on such as Beronath, and even Grul’Thunn of the Crimson Tides than even +1 such mutator is for HC can be a disaster, and you can add them 5 (maybe this bonus should only go to trash mobs but not bosses?)
As once old player said me: “There’s a thin edge between absurd and HC” 
Besides of that amazing music, amazing dlc.